From a Polaris junkie's standpoint, I don't think you'r going to like the rear suspension unless there have been major mods to the one that came under it originally - like replacing it completely - and that happens more often than you think. For whatever reason, Yammi refuses to leave the dark ages when it comes to suspension design/callibration. The 03/04 RX-1's are both this way. The '05 is the first with the Mono. Guys that are looking for top suspension performance with the Mono are sending the shock out for recalibration and having "big boy" springs installed if over 190-200lb. Once this has been done, the ride is on par, maybe even superior to that available with the M-10
On the plus side, they do have a motor and drive train to die for. The clutching and carberation are perfectly calibrated. That's what motivated me to do what I did. (See signature/avatar)
Most sleds have reverse, but it wasn't standard so it's a fair question to ask. FWIW
'07 Apex RTX w/Pro X suspension conversion, Fox Floats w/resi's, Doo extro drivers, Cobra track, Dual Ryde FX rear clickers, .375 Edge torsion springs, HyGear Dual rate front skid springs, SLP anti-stab kit, Powermadd handguards/mirrors, 2" Rox riser, shimmed Poo skis w/custom (homemade) ski savers, Black chrome W/S, Graphics by Arctic FX, and a grin every time I think about it! New Project: 600HO Fusion bump sled, Air 2.0 w/hi/low valves, HRM spindles, Retro graphics, .359 torsion springs.